CN1320188C

CN1320188C - Warp knitting machine

Info

Publication number: CN1320188C
Application number: CNB2004100794106A
Authority: CN
Inventors: K·米斯塔; J·菲舍尔; A·布罗施
Original assignee: Karl Mayer Textilmaschinenfabrik GmbH
Current assignee: Karl Mayer China Ltd
Priority date: 2003-07-16
Filing date: 2004-07-16
Publication date: 2007-06-06
Anticipated expiration: 2024-07-16
Also published as: JP2005036381A; DE10332234B4; JP3976753B2; TW200519249A; TWI279465B; CN1576426A; KR20050009185A; DE10332234A1; EP1498530A1; KR100575492B1

Abstract

A warp loom has a pattern lay-up bar (1) with several thread guides (2) set in back and forth motion by a strap and cable link (12) to a drive unit (21). The strap section moves through a holding clamp-guide (13). - The assembly has groups of strap and cable links (12). Each strap is in surface contact with the next strap. The operation of each group is regulated by a single holding clamp-guide (13). During operation the clamp is operated if the supply of compressed air to the loom should fail.

Description

Warp knitting machine

Technical field

The present invention relates to warp knitting machine (Kettenwirkmaschine), it is provided with at least one flower sley bar, and this flower sley bar is provided with a plurality of thread-carriers that can move back and forth by drive unit on sideslip direction, wherein, between thread-carrier and drive unit traction piece is set.

Background technology

This warp knitting machine is disclosed in DE 101 37 601.At this, thread-carrier is suspended on the steel wire or steel wire rope that two ends are connected with tensioner by tension band, therefore applies identical power to the two ends of steel wire rope.Therefore, the tension band drive motor that twines its drive can only apply the needed power of motion of thread-carrier.But drive motor can not apply tensioning spring or the needed power of other tensioning apparatus.Here, tensioning apparatus is an air cylinder, by the pressure maintenance tensile force of air.

In this equipment, for example being in operation during installation or in addition compressed air supply disruption all to occur.Equipment can not be supplied with compressed air the process that transports the user from manufacturing firm to.In this case, traction piece can not remain on its position owing to lack lateral stiffness.Therefore the danger that exists traction piece to come off from its position and disarray each other.Expense when having caused obviously increasing debugging thus.Before debugging again, traction piece must be chosen separately and its position of packing into.Even when changing the sley bar unit that thread-carrier for example distributes different, also may disarray and damage traction piece.

Summary of the invention

The objective of the invention is to the influence of fault is remained on Min..

This purpose realizes keeping on the direction pre-tensioning and have a tensioning drive unit by fixture.

As long as occur tensile force on the traction piece too small or even the danger that disappears, fixture will be started.Fixture fixedly remains on traction piece on its position of predesignating then.Even act at gravity under the situation of traction piece, traction piece can not come off from this position yet.Correspondingly, debugging becomes much simple again.Only need unclamp fixture.This point is carried out after producing needed power or pressure again, so that traction piece is remained under the tension force.As long as the traction piece tensioning, it just can not leave its position again.

Fixture is clamping device preferably.This is a kind of simple especially design of fixture.Can clamp traction piece easily.Frictional force in this generation enough remains on traction piece on the desired position.

The traction piece structure that preferably in the zone of fixture, becomes band at least.The advantage of band is to have two substantially parallel and flat faces.If particularly fixture is a clamping device, can carry out simple manual operation.Only need tool using to act on the two sides of band, just enough produce the friction that needs and connect.

Preferably have a plurality of traction pieces, and fixture acts on one group of traction piece simultaneously.That is to say, the fixture of oneself needn't each traction piece all be set.Specifically, traction piece can be divided into groups, and a shared fixture is used for a plurality of traction pieces.Can save structure space like this and make control become simple.That is to say as starting point, promptly require fixture to be used for all traction pieces all the time simultaneously, be used for all traction pieces of one group at least.

In this case, preferably, the overlapping storing of this group draw-gear.If draw-gear becomes band in the fixture zone, so advantageous particularly.In this case, can be with overlapping extruding to each.If the not too large power of above-mentioned employing is just enough, these bands are securely held on its position so.

In this case, preferably, a guider is set in the zone of fixture, makes traction piece parallel with the direction of motion of fixture.If fixture for example is a clamping device, guider in contrast can laterally offset when pushing to guarantee these bands so.Fixture is guaranteed jointly with guider then, even these bands also remain on its position when the maintenance process is started.

Fixture preferably acts on many group traction pieces simultaneously, and wherein, these groups have identical height.For example, two groups or three groups of traction pieces can be arranged side by side, exactly, they can be loaded by same fixture.Do the further position of having saved like this.If imagine once compiling facility a large amount of traction pieces are arranged, the thread-carrier group of 64 traction pieces and respective numbers for example is made as one group in that per eight traction pieces are overlapping up and down so, under the situation that two such groups are arranged side by side, and four just enough uses of fixtures.16 traction pieces of two groups can be loaded by a fixture then.

Fixture is preferably in and keeps on the direction pre-tensioning and have a tensioning drive unit.In this scheme, if supplementary energy for example compressed air or current interruptions or drop to no longer the confining force that can surpass fixture, fixture is started automatically.That is to say, needn't take other measures that allow fixture start to fault.As long as supplementary energy interrupts, traction piece just is fixed.

In this case, preferably, fixture has a stage clip.Stage clip is a kind of parts simple in structure.At work, just under unfaulty conditions, stage clip is for example by compressed air or clamped by magnetic force.If supplementary energy interrupts and corresponding therewith stage clip no longer can clamp, traction piece is fixed by fixture so.

In a preferred scheme, fixture has a movably end part, itself and sheep foot anvil acting in conjunction.This end part for example can move by above-mentioned stage clip.Can certainly be other drive units.If the end part moves to sheep foot anvil, the traction piece that will be in so between end part and the sheep foot anvil clamps and fixes.

In this case, preferably, the end part has deformable end face.Deformable end face is fixed this traction piece with the match profiles merging of traction piece then.Deformable end part can also compensate difference in height less between the adjacent set, thereby utilizes a fixture can fix many group traction pieces.

The end part preferably is made of a kind of polymer.The advantage of polymer plastic is with low cost.That is to say, can be considered as the consumable accessory that to change at any time to the end part.Polymer, just the pliability of polymer plastic also can be so that traction piece be accepted surface difference when loading.

In a particularly preferred scheme, sheep foot anvil can move on the part of end.In this case, not only the end part moves, and sheep foot anvil also moves.Reach single or traction piece thus by the unlikely over-deflection of clamping between end part and the sheep foot anvil.The load that is to say traction piece remains on less degree.

In this case, preferably, a block as the sheep foot anvil stroke restricting means is set.That is to say that sheep foot anvil can only move to a position of predesignating.Select this position, make traction piece have best distribution.Particularly under the shorter situation of traction piece, skew is remained in the limit.

In this case, preferred sheep foot anvil has a drive unit, and its power is greater than the drive unit of end part.This point for example can realize thus, and promptly the actuator of a stage clip drives the end part by for example having, and sheep foot anvil is loaded by the actuator of two same form, and the latter is corresponding therewith to have two stage clips of total.The position of guaranteeing sheep foot anvil thus is only definite by block, but can not change by the power of end part.

Traction piece preferably only has drive unit on a side, wherein, traction piece moves on to the tensioning apparatus with cannelure by guide roller on opposite side, and cannelure covers by fixing keeper on the lower end of its gravity direction at least.That is to say that traction piece no longer is stretched between two tensioning apparatus, but between the only fixing drive unit of at one end going up and the tensioning apparatus on the other end.If tensioning apparatus loses its tensile force, traction piece is fixed by fixture in the zone of drive unit so.And on the other end, do not need to fix, because traction piece remains on the guide roller there.This anchor clamps are structurally quite simple.Here, the traction piece that for example can be used as the steel wire rope formation on this end directly is fixed in the groove of guide roller, can therefrom not come off.

In this case, preferably, a plurality of guide rollers are arranged side by side, and wherein, the gap between the adjacent guide roller is less than the minimum transverse cross-sectional dimension of traction piece in the gap area.In this case, traction piece can side direction not leave guide roller yet, because the gathering sill of guide roller covers by adjacent guide roller in this zone.Only outmost guide roller needs other modes to cover.

Description of drawings

By in conjunction with the accompanying drawings preferred embodiment the present invention is elaborated below.Wherein:

Fig. 1 illustrates the partial schematic diagram of the warp knitting machine that has a traction piece;

Fig. 2 illustrates the partial schematic diagram of the warp knitting machine that has a plurality of traction pieces;

Fig. 3 illustrates the perspective view of two fixtures;

Fig. 4 illustrates the enlarged drawing of guide roller on the traction piece end;

Fig. 5 illustrates Fig. 4 cross section V-V;

Fig. 6 illustrates Fig. 4 cross section VI-VI.

The specific embodiment

Fig. 1 illustrates the partial schematic diagram of the warp knitting machine that has a traction piece 1, and this traction piece has a thread-carrier 2.On a warp knitting machine, generally have a plurality of colored sley bars.Each flower sley bar has more than one thread-carrier 2 usually again.And the effect of the warp knitting machine shown in the part is a simplified illustration in Fig. 1.

Thread-carrier 2 is fixed on the steel wire rope 3.If steel wire rope 3 moves around, thread-carrier 2 moves around on sideslip direction equally so.The parallel longitudinal of sideslip direction and steel wire rope 3 extends.

On an end (Fig. 1 right side), steel wire rope 3 is shifted to tensioning apparatus 5 by a guide roller 4.5 pairs of steel wire ropes of tensioning apparatus 3 produce a kind of tensile force that has nothing to do with haul distance.For this reason, tensioning apparatus 5 for example is a compressed air cylinder.

On another end, steel wire rope 3 is connected with tension band 6 by a releasable jockey 7.Tension band 6 is wrapped on the cylinder 8, and cylinder is arranged on the output shaft 9 of transmission mechanism 10.Motor 11 is set on the input of transmission mechanism 10.Motor 11 is motor, servomotor preferably, the synchronous motor of permanent-magnet-field or stepping motor.Can use any motor of controlling with less angle increment as motor 11 in principle.Not shown for controlling motor 11 employed control electric devices.Motor and transmission mechanism and drive unit 21 of cylinder 8 common formations.

Traction piece 12 of steel wire rope 3 and tension band 6 common formations.Traction piece 12 remains under the tensioning state by tensioning apparatus 5 when work.Motor 11 is only to clamping device 5 work.Can use transmission mechanism 10 thus, although transmission mechanism 10 is subjected to the influence in gap.This gap always reduces gradually to equidirectional, and irrelevant with the direction of motion of traction piece 12.

Be in operation, also have in the debug phase, fault is inevitable.If for example the compressed air of carrying to clamping device 5 interrupts, the tensile force of traction piece 12 descends so, and exists traction piece 12 to leave the danger of position shown in it.

In order to eliminate this situation, the fixture 13 of a starting when breaking down is set.Fixture 13 has a sheep foot anvil 14, end part 15 and its acting in conjunction.End part 15 is made of polymer plastic.That is to say, can deflection in certain limit.Fix a guider 16 on the sheep foot anvil 14, for example having the fork mode of two tips 17,18, the direction of motion of two tips and end part 15 extends in parallel.

End part 15 drives by the tappet 19 of drive cylinder 20.In drive cylinder 20, in the mode that is not shown specifically one stage clip is set, if there is not reaction force to produce, stage clip is pressed to end part 15 direction of sheep foot anvil 14.Tappet 19 certainly when work by supplementary energy, for example compressed air is removed from sheep foot anvil 14, thus end part 15 keeps enough distances with sheep foot anvil 14, and be with 6 can be with respect to sheep foot anvil 14 freely-movables.If interrupting compressed air supplies with, so not only the effect of tensioning apparatus 5 descends, and the stage clip that is arranged in the drive cylinder 20 can not keep compression for more time, but with tappet 19 together with end part 15 to the reach of the direction of sheep foot anvil 14, and with end part 15 be fixed on the sheep foot anvil 14 with under 6 the centre position.At this, guider 16 stops is with 6 laterally offsets.

Drive cylinder can certainly adopt other designs.For example, can have magnetic connector between sheep foot anvil 14 and end part 15, its medial end portions part 15 is gone over by magnetic attraction by sheep foot anvil 14.In this case, can form the reaction force that produces by compressed air in the drive cylinder 20 equally.Reaction force also can adopt other modes to form, and for example passes through magnetic force equally.Drive cylinder 20 also can be a linear motor, and it can overcome the reaction force that forms by spring, so as with end part 15 remain under the failure-free operation with sheep foot anvil 14 distance enough far away on.But as long as break down and tensioning apparatus 5 no longer can satisfy its effect, fixture 13 will be started, and end part 15 will be with 6 to be clamped between self and the sheep foot anvil 14.Prevent that thus draw-gear 12 from leaving its position and disarray with other draw-gears 12 that are not shown specifically.

Fig. 2 is illustrated in when using a plurality of traction piece, the comparison diagram of failure-free operation and failure operation.Adopt identical Reference numeral with parts identical among Fig. 1.

Each traction piece 12 has self a tensioning apparatus 5 at one end, have the drive unit of self on the other end, therefrom can see cylinder 8.Fixture 13 is not work in Fig. 2 a.End part 15 has the distance enough with sheep foot anvil 14, thereby under the effect of the tensioning apparatus 5 on the drive unit 21 on traction piece 12 1 ends and traction piece 12 other ends, thread-carrier 2 can move around on sideslip direction.

As long as the power that is applied by tensioning apparatus 5 weakens, just exist the danger that each traction piece 12 is disarrayed mutually, for example because they come off from its nominal position.This point is in its operating position by the fixture 13 shown in Fig. 2 b and is prevented.End part 15 moves on sheep foot anvil 14, and with traction piece 12, exactly is that the banded section 6 of traction piece 12 is clamped between self and the sheep foot anvil 14.At this, guider 16 prevents traction piece 12 laterally offsets.Fixture 13 acts on a plurality of traction pieces simultaneously, acts on six traction pieces in an illustrated embodiment.Traction piece 12 is thus not only with respect to warp knitting machine, and location toward each other, thereby the phenomenon that traction piece 12 is disarrayed mutually can not occur.

Fig. 3 illustrates the embodiment that has two fixtures, and wherein fixture 13 is corresponding with the embodiment of Fig. 1 and 2.End part 15 can move to fixing sheep foot anvil 14.The traction piece that is between sheep foot anvil 14 and the end part 15 does not here illustrate.

Fixedly on the same supports 22 of the drive cylinder 20 of fixture 13, another fixture 23 is set in the above.Fixture 23 has a sheep foot anvil 24, by the end part 25 and its acting in conjunction of drive cylinder 20a driving.Drive cylinder 20a is identical with the drive cylinder 20 of fixture 13.

Sheep foot anvil 24 is by two

other drive cylinder

20b, and 20c can move on the direction of end part 25.At this,

drive cylinder

20a, 20b, 20c is identical with drive cylinder 20 structures of fixture 13.But sheep foot anvil 24 can only move to the block 26 of corresponding therewith formation haul distance restraint device.Block 26 is fixed on the support 22.

If compressed air is supplied with and is interrupted now, so

whole drive cylinders

20,20a, 20b, 20c starts working.Sheep foot anvil 24 is by two

drive cylinder

20b, and 20c moves to block 26, that is to say towards end part 25.Simultaneously, end part 25 moves to sheep foot anvil 24 directions, thereby traction piece 12 is clamped between sheep foot anvil 24 and the end part 25.By two

drive cylinder

20b, 20c acts on sheep foot anvil 24, and the power that acts on sheep foot anvil 24 is greater than the power that acts on end part 25.That is to say that although end part 25 is fixed on traction piece 12 on the sheep foot anvil 24, sheep foot anvil 24 still contacts and remains there with block 26.

As can be seen from Figure 3, end part 25 loads to two groups of traction pieces, and wherein, every group of traction piece 12 has the band of a plurality of overlapping storings.These two groups of height are identical, thereby the traction piece of all groups 12 all can secure fixation.Less inhomogeneities or tolerance also can be born by the elasticity or the flexibility of end part 25.

The advantage of the mobility of sheep foot anvil 24 is, the skew of traction piece 12 for example must be less than appreciable skew among Fig. 2 b.Particularly under the short situation of traction piece 12, keep load littler thus.

Fig. 4-6 illustrates the situation on the traction piece other end.

Traction piece 12 is by guide roller 4 guiding.As appreciable from Fig. 5, each guide roller 4 remains in the frame member 27 and has a cannelure 28.Be in this cannelure 28 is traction piece 12.Fixing a pin 29 on the frame member 27, exactly is on the extreme lower position of gravity direction.Pin 29 covers cannelure 28, thereby traction piece 12 can not come off from cannelure 28.In addition, pin 29 does not contact with guide roller 4, thereby does not produce extra friction here.

If the tensile force of tensioning apparatus 5 weakens now, though traction piece meeting landing slightly downwards under the effect of gravity so can not left the cannelure 28 on the guide roller 4, because pin 29 has stoped them.

Another kind of as seen from Figure 6 measure.Adjacent guide roller 4 has apart from a, less than the minimum transverse cross-sectional dimension of traction piece 12 in this zone.Adjacent thus guide roller 4 is fixed on traction piece 12 between self.

The adjacent guide roller that only on outmost guide roller 4a, lacks fixed traction spare.Have a pin 30 here, it is covering cannelure 28 with pin 29 similar modes.

In many aspects can with shown in embodiment

different.Fixture

13,23 also can fix more than shown in two groups of traction pieces 12.Also

sheep foot anvil

14,24 can be designed to flexiblely, reduce the flexible or flexible of

end part

15,25, thereby absorb inexactnesies by sheep foot anvil 14,24.Also only

sheep foot anvil

14,24 motions, and end part 25 is fixing.

Replacement also can be used electric energy as the compressed air that supplementary energy uses, and opens wide to keep the gap between

end part

15,25 and the sheep foot anvil 14,24.Under supplementary energy interruption situation, in any case will make

fixture

13,23 startings.

Claims

1. a warp knitting machine has at least one flower sley bar, and this flower sley bar is provided with a plurality of thread-carriers that can move around by drive unit on sideslip direction, wherein, a traction piece is set between thread-carrier and drive unit and a fixture (13,23) that traction piece (12) is worked is set, it is characterized in that, described fixture (13,23) keep on the direction pre-tensioning and have a tensioning drive unit (20,20a, 20b, 20c).

2. by the described warp knitting machine of claim 1, it is characterized in that described fixture (13,23) is a clamping device.

3. by the described warp knitting machine of claim 1, it is characterized in that described traction piece (12) structure that in the zone of fixture (13,23), becomes band at least.

4. by the described warp knitting machine of claim 1, it is characterized in that having a plurality of traction pieces (12), fixture (13,23) acts on one group of traction piece (12) simultaneously.

5. by the described warp knitting machine of claim 4, it is characterized in that the overlapped storing of the traction piece of this group (12).

6. by the described warp knitting machine of claim 5, it is characterized in that a guider (16) is set, and the direction of motion that makes traction piece (12) be parallel to fixture (13) moves in the zone of fixture (13).

7. by the described warp knitting machine of claim 4, it is characterized in that fixedly transposition (13,23) acts on many group traction pieces (12) simultaneously, wherein, these groups have identical height.

8. by the described warp knitting machine of claim 1, it is characterized in that fixture (13,23) has a stage clip.

9. by the described warp knitting machine of claim 1, it is characterized in that fixture (13,23) has a movably end part (15,25), this end part and a sheep foot anvil (14,24) acting in conjunction.

10. by the described warp knitting machine of claim 9, it is characterized in that end part (15,25) has deformable end face.

11., it is characterized in that end part (15,25) is made of a kind of polymer by the described warp knitting machine of claim 9.

12., it is characterized in that sheep foot anvil (24) can be gone up at end part (25) and move by the described warp knitting machine of claim 9.

13. by the described warp knitting machine of claim 12, it is characterized in that, a block (26) as sheep foot anvil (24) stroke restricting means be set.

14. by the described warp knitting machine of claim 13, it is characterized in that sheep foot anvil (24) has a drive unit, its power is greater than the drive unit of end part (25).

15. by the described warp knitting machine of claim 1, its feature in, traction piece (12) only has a drive unit (21) on a side, wherein, traction piece is shifted to the tensioning apparatus (5) with cannelure (28) by a guide roller (4) on opposite side, cannelure covers by a fixing keeper (29) on the lower end of its gravity direction at least.

16. by the described warp knitting machine of claim 15, it is characterized in that a plurality of guide rollers (4) are arranged side by side, wherein, the gap (a) between the adjacent guide roller (4) is less than the minimum transverse cross-sectional dimension of traction piece (12) in gap (a) zone.